access control card reader magnetic card reader working volt:8~15V Model:BM231D Brand:COMA Access control card readerStandard feature:1.Type:BM231D2.Working volt:8~15V3.Working current:60MA4.Working temperature:10°C~+70C°5.Card readerable distance:3-13CM for IC /ID card reader6.Communication format:W26,W34,W44,RS485,RS2327.Response speed:≤0.1S access control card reader